Welding device



June 10, 1930. w. F. Ml-:cUM 1,762,402

WELDING DEVICE y Filed March 2'?, 1929` By @www Attorney 'Patented 'June10, 19.30

PATENr OFFICE 'WILLIAI I'. MECH, 0F DOUGLAS; 'WYOMING wELniNe DnvicnApplication tiled March 27, 1929. Serial No'. 350,247.

This invention relates to a device which is especiall but notnecessarily designed to aid in wel ing together the ends of copper w1re.

It is a matter of common knowledge that diiiculty and inconvenience isencountered in eiectively welding together the ends of the copper wiresused vas electricity conductors or for other purposes. The melting-point of copper is such as to add decisively to the weldmg task, forwhen intense heat is applied, at the abutting .ends of the wire, themetal fuses so rapidly that a durable connection can not be readily oreasily obtained.

I have therefore produced a temporary -wire end connector on coupling,expressly made for readyapplicationfto the wire en to hold -them inassembled abutting relation until the weld has been made. In carryingout the invention I have evolved and produced a simple and inexI pensiveappliance such as Apermits effective heating of the wire ends, the samebeing characterized by a structural arrangement which permits clearvision of said wire ends so that the moment the desired fusing takesplace, the force of heat may be removed to prevent overheating and aboiling like mass 4melting of the copper.

The specific structure for accomplishing these advantages will becomemore readily apparent from the following description and drawings.

In the drawings:

i 5 Figure 1 is a top plan view ofthe com- .plete device.

Figure 2 is a longitudinal elevational view showing one section of thedevice. y v- Figure 3 is a view like Figure 2, showing 4 0 a slightmodification in construction.

Figure 4 is a central cross sectional view through Figure 1.

Figure 5 is a view like Figure 4.-, with a section taken throlgh thatembodiment of the device seen in l igure 3.

len hs of Wire, one bein Referring now to the drawings by referencenumerals, it will b e observed that the device is generally designatedby the reference character 6. It is in the form of a tubular wire endcoupling or connector. IIt is made up of a pair of duplicate halfsections 7 and 8, composed of appropriatev-rel fractor material, such asfire clay or welding car on paste.

The coupling'is made in sections to .facilitate placement or assemblyagainst and around the opposite end portions of the copper wire.- In thedrawin s, I show two esignated at 9 an the other at 10 and t e ends ofcourse come together in abutting relation as repreds sented.

These clamping sections are maintained in assembled relation by anysuitable means. In the drawings, I show bracing and retaining wires 11.It is understood, however, t

that any suitable clamping devices imay be em loyed. l

seen in Figure 1, the referencel character 12 designates a recess,formed by comlemental notches 13 and constituting a ame concentrationpocket. The reference character 14v designates an aperture forminga'sight opening to expose the abutting ends of the wire. It is obviousthat the heat, which may be from any source, but which is preferably awelding torch is applied to the pocket 12 and directly against theabutting end 'of the wire. Through the medium ofthe sight openin 14, theuser may see when the fusing ta es place, and thereby immediately removethe source of heat to prevent overmelting. Thus the clamp holds the wireends in assembled relation until the weld is made and is an insulator toprevent overheating of the portions of the wire adjacent the abuttingends.

The only difference betyveen that form of the invention seen in Figures1, 2, and 4;, and the form seen in Figures 3 and 5 is that 90 theIcoupling sections? and 8' are formed the jo The gist of the inventionis in the pro with notches 15, which cooperate with a sort of preheatinpocket. Thus the heat is first a plied to t is pocket to preheat theends of) the wire and is then directed against the diametricallyoppositev pocket 12 to finish vision of a refractory coupling or form tohold the wire ends in assembled relation, to heat through these ends,and to permit clear vision to determine when to remove the source ofheat. As before stated, thev force f of heat may be varied according tocircuml v3o v. and advantages from the disclosure so far made;ATherefore, a more lengthy Idescripstances, and it is a really immaterialfactor vsofaras the novelty of this invention is 'facilitates thejoining and weldin of wire ends, especially copper to facilltate thiswork and to be usable over and over againv for sake of economy andefliciency.

It is thought, however, thatpersons skilled in the art will be able toobtain aA clear understanding'of the construction and features j tion isregarded as unnecessary.

Minor changes in the shape, size, mate# rials, and rearrangement offeatures coming within the field of invention claimed may be resortedto, in actual practice, if desired.

I claim: f* e 1. A wire welding device of the character describedcomprising a pair of complementary sections adapted to be disposed inopposed relation to each other and having grooves in their opposed sidesfor the reception of the wires and further a pocket formed in theirintermediate fportions communicating withthe grooves in a manner toexpose the adjacent ends of the Wires, said pocket constituting meansfor concentrating heat on the exposed portions of the wires.

2. A wire welding device of the character described comprising a pair ofelongated complementary half sections adapted to be disposed inopposedrelation to each other and having longitudinal grooves in theiropposed sides for the reception'of the Wires in end abutting relation,said half sections being further provided with intermediate,transverelyaligned, complemental recesses in one side communicating withthe longitudinal grooves in a manner yto expose the adjacent endportions of the wires, said complemental recesses constituting a pocket'for concentrating heat o`n the exposed end portions of thewires. v

3.A wire welding device of the charac ter described comprising a pair ofelongated complementary half sections of substanvtially semi-circularcross-section adapted to in a manner to expose the adjacent end portionsof the wires, the Walls of said complemental recesses converginginwardly, said recess constituting pockets for concentrating heat on theexposed end portions of the wires. j

4. A wire welding device of the character described comprising a pair ofelongated complementary half sections of substantially semicircularcross-section adapted to be disposed in parallel, opposed side abuttingrelation to each. other and having complementary. longitudinally'.extending grooves inx their opposed sides for the reception of the endportions of the wires in end abutting relation, said half sections beingfurther provided with intermediate transversely aligned complementalrecesses in one side thereof communicating with the groovesl in a.manner to expose the adjacent -end portions of thev wires, the walls ofsaid provided with transversely aligned comple-r mental recesses'on thediametrically oppo- .site sides thereof from the heat4 concentratingypockets and terminating lin spaced relation to the 'longitudinal groovesyand constituting means to facilitate the preheating -of the abuttingends of the wires.

5.k A wire welding device of the character described comprising `a pairof elongated complementary half sections of substan tially semi-circularcross-sectionl adapted to be disposed in-parallel, opposed side abuttingrelation to each other and having complementary longitudinally extendinggrooves in their opposed sides for the reception of the end portions-ofthe wires in end abut ting relation, said half sections being further.1l

provided with intermediate transversely aligned complemental recesses inone side thereof communicating with the grooves in a manner to exposethe adjacent end portions of the wires, the walls of said complerecessconstituting pockets for concentrating heat to the exposed end portionsof the' wires, said half sections belng further' promentall recessesconverging inwardly, said site sides thereof from the heat concentratingpockets and terminating in spaced relation to the longitudinal groovesand constitutng means to facilitate the preheating of the abutting endsof the Wires, and means for detachably securing the half sections t0-gether in a manner to clamp the end portions of the Wires therebetween.

In testimony whereof I ax my signature.

WILLIAM F. MECUM.

